My cat got sick in December—the vet could not tell me what caused his problems–but he had anemia and a heart murmur–they said on the beginning. He started losing weight and he was throwing up some –that is why I took him in to see the vet. In the end his liver and kidneys were involved. He lived less than a month from the time he got sick.I was feeding him a food that was recalled.Hope your kitty will be okay. Good luck.